I got my first leather only a few weeks ago. At first it opened up quickly and seemed to be thriving and now it’s closed and has detritus covering it. I leaned my wave maker more toward him to keep any other detritus off but it just kept getting worse. Now it looks like it has some bleach spots. Everyting else in my tank look great except for this guy pictures attached below. I am fairly new to this so please don’t beat me up.